Alternator replacement 6G/6.0 - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 07-14-2014, 03:46 PM Thread Starter Fanatic
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Alternator replacement 6G/6.0

I changed my alternator today. I used the little tab on the bottom of the belt tensioner for the first time as seen in this video:

The only differences: I could not, for the life of me, get my arm in there and pull the belt at the same time (coolant filter in there)..................BUT..............

if you have a second person slide under the vehicle with something about 18" long (like a long screwdriver or long 1/4 inch extention) they can easily push up that tab while you stretch the belt or even better in my case pry the belt stretched out with a pry bar against the alternator a few inches below the pulley. once that tab is locked it is a very simple off-on replacement job. When the new alt. is in place, a quick pull on the belt releases the tab and re-tensions the belt.

This was so dang slick compared to my previous changes that I just had to put it on here in hopes some other neophytes luck into it in the Search feature.

Last edited by cemiii; 07-14-2014 at 04:43 PM.
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post #2 of 4 Old 07-14-2014, 07:29 PM
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You have to go full on Gorilla to do it alone. I'm just shy of 300lbs so it's a little easier for me

2003 6.0L F250 4x4 Lariat
Fog Light Mod,High Idle Mod,Zoodad,Hose clamp taligate mod,08 rear bumper,Sinister EGR delete,ELC EC-1 coolant,Edge Juice,MKM(Sinister)coolant filter,HFCM drain plug upgrade,diy FICM repair(steady 48.5v now),DIY CCV mod,Torque Pro,Blue spring upgrade,Aluminum radiator,05 headlights,LED foglightd

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Y-pipe,fuel pressure gauge,diy oil bypass(maybe centrifuge),oil pressure gauge
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post #3 of 4 Old 07-16-2014, 09:42 AM
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Originally Posted by squirtgun View Post
You have to go full on Gorilla to do it alone. I'm just shy of 300lbs so it's a little easier for me
Ha! So true. I'm a big boy, and it takes a lot of grit to pull up on the belt with one hand. Anyone who says that part is easy has a worn out tensioner.

Once that is done, it's a 10 minute job.
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post #4 of 4 Old 07-16-2014, 01:01 PM
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I'm a short **** and all of 170 lbs and damn that tab was tough to lock. I had to do like cemiii and use a long pry bar and pry the belt using the alternator as leverage. I just barely got it but I got that damned tab to lock all by myself! Once I got the alt swapped out and the belt changed over (used an AC Delco 140amp alt with smaller pulley and a Gates green backed belt) I just gave a yank on the belt and the tab let go and the tensioner snapped back into place.

I did try using a 1/2" breaker bar down in there to move the tensioner but there just wasn't enough room to get it attached.

If I have to do that again it will be too soon.

2006 F-350 XLT FX4 SCLB 6.0L | TTY head bolts | stock EGR and cooler | blue spring FP mod | PHP Atlas 40 FICM tune | ScanGauge 2 & GlowShift 3-in-1 gauge (Boost/EGT/FP) | PMM coolant filter kit | Flo~Pro 4" turbo back w/muffler | stock tune

Last edited by Soledad; 07-16-2014 at 01:05 PM.
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